{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:VCJCYHAZRRGSJXZPROZQOVLIXF","short_pith_number":"pith:VCJCYHAZ","canonical_record":{"source":{"id":"1312.2685","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-12-10T06:50:27Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"4be4a5c55e8031be83f672f65d668e9e8d8a472bfaaa07ce07e243663755537f","abstract_canon_sha256":"50d2b5779566817bf50deb0e5c94ec7c142d16db3becff0cd67ba73528071b63"},"schema_version":"1.0"},"canonical_sha256":"a8922c1c198c4d24df2f8bb3075568b950e2ba4eb5acdc8015ae3532253a45d4","source":{"kind":"arxiv","id":"1312.2685","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.2685","created_at":"2026-05-18T02:49:30Z"},{"alias_kind":"arxiv_version","alias_value":"1312.2685v1","created_at":"2026-05-18T02:49:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.2685","created_at":"2026-05-18T02:49:30Z"},{"alias_kind":"pith_short_12","alias_value":"VCJCYHAZRRGS","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VCJCYHAZRRGSJXZP","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VCJCYHAZ","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:VCJCYHAZRRGSJXZPROZQOVLIXF","target":"record","payload":{"canonical_record":{"source":{"id":"1312.2685","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-12-10T06:50:27Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"4be4a5c55e8031be83f672f65d668e9e8d8a472bfaaa07ce07e243663755537f","abstract_canon_sha256":"50d2b5779566817bf50deb0e5c94ec7c142d16db3becff0cd67ba73528071b63"},"schema_version":"1.0"},"canonical_sha256":"a8922c1c198c4d24df2f8bb3075568b950e2ba4eb5acdc8015ae3532253a45d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:49:30.689840Z","signature_b64":"pJdDPzFann2QZ9Mb9oQRwhxUJJWl9bHZDYvaZTLTzsn78P5lj+MbTA5z4HSq3gp+YOcViPgjQVFHLQRnG0BvCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a8922c1c198c4d24df2f8bb3075568b950e2ba4eb5acdc8015ae3532253a45d4","last_reissued_at":"2026-05-18T02:49:30.689349Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:49:30.689349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.2685","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:49:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"23tJkQp+DQyIZYDt7HJo/aFIBxSblxjczw0bR4rwCLSEZUXHPL7x7HfnyTuL95yR7nqu0Bnezu2wPXqy2lHvDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:48:58.210516Z"},"content_sha256":"f0accf95bb7be4db099d9f0fa97ae394f4c5a929597769961f87bfa2be4f8c23","schema_version":"1.0","event_id":"sha256:f0accf95bb7be4db099d9f0fa97ae394f4c5a929597769961f87bfa2be4f8c23"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:VCJCYHAZRRGSJXZPROZQOVLIXF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Finding galaxies with unusual HI content","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"B\\\"arbel S. Koribalski, Helga D\\'enes, Virginia A. Kilborn","submitted_at":"2013-12-10T06:50:27Z","abstract_excerpt":"Observations show that galaxies in galaxy clusters are strongly influenced by their environment. There is growing evidence that some galaxies in groups show similar properties to galaxies in clusters, such as redder colours and gas deficiency, highlighting that environmental processes are also effective on galaxy group scales. The question is though, which mechanisms are important in low density environments? To answer this, we identify gas deficient galaxies to investigate recent or ongoing environmental processes, such as gas stripping. We are using scaling relations between the neutral hydr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.2685","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:49:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"njz/ZER2zkVa4DgcK3OYnOT/yu+qRjBVQYvdfWOPcDk/dMjkyqdxowa0LTt+8M5HUE0G6nMiPt+ib7R99j75CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:48:58.211347Z"},"content_sha256":"4dff0746a6872fb2b6710ae25a805d9aac9e2e6744a94223e3dfb621969a5468","schema_version":"1.0","event_id":"sha256:4dff0746a6872fb2b6710ae25a805d9aac9e2e6744a94223e3dfb621969a5468"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VCJCYHAZRRGSJXZPROZQOVLIXF/bundle.json","state_url":"https://pith.science/pith/VCJCYHAZRRGSJXZPROZQOVLIXF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VCJCYHAZRRGSJXZPROZQOVLIXF/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T05:48:58Z","links":{"resolver":"https://pith.science/pith/VCJCYHAZRRGSJXZPROZQOVLIXF","bundle":"https://pith.science/pith/VCJCYHAZRRGSJXZPROZQOVLIXF/bundle.json","state":"https://pith.science/pith/VCJCYHAZRRGSJXZPROZQOVLIXF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VCJCYHAZRRGSJXZPROZQOVLIXF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VCJCYHAZRRGSJXZPROZQOVLIXF","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"50d2b5779566817bf50deb0e5c94ec7c142d16db3becff0cd67ba73528071b63","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-12-10T06:50:27Z","title_canon_sha256":"4be4a5c55e8031be83f672f65d668e9e8d8a472bfaaa07ce07e243663755537f"},"schema_version":"1.0","source":{"id":"1312.2685","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.2685","created_at":"2026-05-18T02:49:30Z"},{"alias_kind":"arxiv_version","alias_value":"1312.2685v1","created_at":"2026-05-18T02:49:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.2685","created_at":"2026-05-18T02:49:30Z"},{"alias_kind":"pith_short_12","alias_value":"VCJCYHAZRRGS","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VCJCYHAZRRGSJXZP","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VCJCYHAZ","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:4dff0746a6872fb2b6710ae25a805d9aac9e2e6744a94223e3dfb621969a5468","target":"graph","created_at":"2026-05-18T02:49:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Observations show that galaxies in galaxy clusters are strongly influenced by their environment. There is growing evidence that some galaxies in groups show similar properties to galaxies in clusters, such as redder colours and gas deficiency, highlighting that environmental processes are also effective on galaxy group scales. The question is though, which mechanisms are important in low density environments? To answer this, we identify gas deficient galaxies to investigate recent or ongoing environmental processes, such as gas stripping. We are using scaling relations between the neutral hydr","authors_text":"B\\\"arbel S. Koribalski, Helga D\\'enes, Virginia A. Kilborn","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-12-10T06:50:27Z","title":"Finding galaxies with unusual HI content"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.2685","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f0accf95bb7be4db099d9f0fa97ae394f4c5a929597769961f87bfa2be4f8c23","target":"record","created_at":"2026-05-18T02:49:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"50d2b5779566817bf50deb0e5c94ec7c142d16db3becff0cd67ba73528071b63","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-12-10T06:50:27Z","title_canon_sha256":"4be4a5c55e8031be83f672f65d668e9e8d8a472bfaaa07ce07e243663755537f"},"schema_version":"1.0","source":{"id":"1312.2685","kind":"arxiv","version":1}},"canonical_sha256":"a8922c1c198c4d24df2f8bb3075568b950e2ba4eb5acdc8015ae3532253a45d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8922c1c198c4d24df2f8bb3075568b950e2ba4eb5acdc8015ae3532253a45d4","first_computed_at":"2026-05-18T02:49:30.689349Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:49:30.689349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pJdDPzFann2QZ9Mb9oQRwhxUJJWl9bHZDYvaZTLTzsn78P5lj+MbTA5z4HSq3gp+YOcViPgjQVFHLQRnG0BvCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:49:30.689840Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.2685","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0accf95bb7be4db099d9f0fa97ae394f4c5a929597769961f87bfa2be4f8c23","sha256:4dff0746a6872fb2b6710ae25a805d9aac9e2e6744a94223e3dfb621969a5468"],"state_sha256":"14fa0a01d848e16c63470a574d0b5b449b57bbd9e57b8dcd7bb9f5395b0ab3f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MGSDA13OFBb54D85Y3xFakXacBTCcL4lSVk8AU6OcVWc7pBzpA1B6mQ/DcHBeuO8fh+J5e9XxPQRBVNSHyEbDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:48:58.215223Z","bundle_sha256":"931bd1e2fae6a95749908172665766d73dfd3d376983141925e0093030595dc7"}}